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Adequate hardness and wear resistance of hot pressing grouting mold and application requirements

May 24, 2019

The hot pressing grouting mold makes the billet a tool of a specific shape and size under the action of external force during the manufacturing process. Widely used in blanking, die forging, cold heading, extrusion, powder metallurgy parts pressing, pressure casting, as well as compression molding or injection molding of engineering plastics, rubber, ceramics and other products. The mold has a specific contour or cavity shape, and the application of the contour shape with the cutting edge allows the blank to be separated (punched) in the shape of the contour. Applying the inner cavity shape allows the blank to obtain a corresponding three-dimensional shape.

To some extent, the hot press grouting mold generally includes two parts, a movable mold and a fixed mold (or a convex mold and a concave mold), which can be divided and combined. When the parts are separated, the parts are taken out, and when they are closed, the blanks are injected into the mold cavity to form. The mold is a precision tool with complex shape and bearing the expansion force of the blank. It has high requirements on structural strength, stiffness, surface hardness, surface roughness and processing accuracy. The development level of mold production is one of the important signs of mechanical manufacturing level.

The hot pressing grouting mold steel must have sufficient hardness and wear resistance, sufficient strength and toughness. Good processing performance, good pattern corrosion. Therefore, medium carbon alloy steel is generally used. Commonly used are Japan Datong YK-30, yellow card 55CC, generally used in the factory state, after quenching and tempering treatment, the effect is better. www.yxhgmould.com